Today I attempted to add the arch that I've been wanting for a while and found it almost impossible to accomplish without screwing up my flow due to the growth of the corals. Unfortunately, I'm about out of room to mount all these frags I have on my frag racks, so something needed to be done. I ended up making a bit of an arch, but it entirely behind the right island. I still have quite a bit of baserock left over, so if I get ambitious, I might make an arch that goes from the new structure, over both MP10s in back and have it come down behind the left island...only time will tell. Here's a couple pics.... sorry for the poor quality, they're under the actinics again:
It stands out like a sore thumb without the coralline, but I'm pretty happy with the way it looks. Hard to capture in the pics, but it seems to give the tank a bit of depth with the cave in back.
I also ordered a couple magnetic structures from the Alternative Reef today to conceal the MP40s and the first should be here sometime next week. I'll be sure to post some pics when they come!